"Tufte's most recent book, Beautiful Evidence, is filled with hundreds of illustrations from the worlds of art and science. It contains historical maps and diagrams as well as contemporary charts and graphs. In one chapter alone, there's an 18th-century depiction of how to do a cross-section drawing of how a bird's wing works, and photos from a 1940s instruction book for skiing.They all demonstrate one concept: Good design is timeless, while bad design can be a matter of life and death.
He's an outspoken critic of PowerPoint presentations, saying they oversimplify and can stand in the way of communication. Far too often, he says, the bells and whistles of PowerPoint are used as a crutch by people who don't have anything to say."